New 6V8399 Seal Replacement suitable for Caterpillar Equipment

  • New Seal Replacement suitable for Caterpillar Equipment
  • Made to USA Specification

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$0.29
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SKU
6V8399CTP
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Description for 6V8399 Seal Ring

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This aftermarket Caterpillar 6V8399 Seal Ring is built to meet U.S. OEM specifications for durability and performance. At Propel Parts, we perform strict quality checks to ensure it fits and functions like your original Caterpillar Seal Ring.
Direct Replacement: Engineered for a precise fit in Caterpillar equipment.
OEM-Spec Quality: Manufactured to match the performance of your original part.
Tested Reliability: Strict quality checks are performed before shipping.

Specification for 6V8399 Seal Ring

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Replacement Part Number(s): 6V-8399
Specifications: Aftermarket Part | US OEM Specs.
Shipping: Same Day (Weekdays) | Order by 3pm.
Warranty: Unlimited Mileage | 1 Year Warranty.
Core: No Core Required | No Core Charge.
Weight: 0.01 LBS | 0.00 KG
Dimensions: 0.79 x 0.79 x 0.08 (inches)
Condition: New

Exact Fit Guarantee for 6V8399 Seal Ring

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Looking for a reliable replacement Caterpillar 6V8399 Seal Ring ? Order with confidence through our Exact Fit Guarantee.
Verified Fit: Before we ship, we check your part against CAT SIS (Caterpillar Service Information System) to confirm it's the correct match for your machine.
Peace of Mind: If it isn't the right fit, we'll contact you with the correct Caterpillar part number before your order goes out.
Exclusive Guarantee: Enroll in our Exact Fit Guarantee at checkout to ensure you get the part you need the first time.
More Information
Dimensions 0.79x0.79x0.08
Customer Reviews
  1. 100%
    Placed an order twice and immediately resolved!
    Misty reched out immediately because I accidentally placed an order twice. Fantastic service.
  2. 100%
    Excellent and prompt response.
    Propel parts team helped me greatly regarding a special request and I always get prompt response.
    They’re fantastic!
  3. 100%
    Quick and efficient.
    Great products and a great team to deal with. We had a small issue with a missing part and the Customer Services Team dealt with it quickly and efficiently and in a way which left me, the customer, feeling entirely satisfied. Would highly recommend.
  4. 100%
    To my country the company is doing great
    The products they market is good and
    Affordable.
    They can delivery to any country, stree free.
    Tested and trusted.
  5. 100%
    Very knowledgeable and quick to quote parts.
    Very quick to respond to parts quotes. Knowledgeable and Polite, and very quick shipping. Definitely will purchase parts from these guys in the future.
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Frequently Asked Questions

Product

What is the 6V8399 seal used for?

The 6V8399 seal keeps fluids contained and contaminants out where two surfaces meet or a shaft rotates. A sound seal maintains pressure, prevents leaks, and protects the components it isolates.

How do I install the 6V8399 seal?

To install the 6V8399 properly, prepare the area first and confirm the result afterward. Use these steps:

  1. Shut down and depressurize the system, then let it cool if needed
  2. Remove the old seal and clean the bore and shaft surfaces
  3. Inspect the sealing surface for scoring, pitting, or wear
  4. Lightly lubricate the 6V8399 as directed and fit it square to the bore
  5. Seat it to the correct depth without distorting the lip, then check for leaks

Which Caterpillar machines is the 6V8399 compatible with?

The 6V8399 is matched to particular Caterpillar equipment, so always verify the application against your parts reference before purchasing. Please reach out to Propel Parts for help verifying fitment.

Does the 6V8399 seal meet performance standards?

Yes. Propel Parts supplies the 6V8399 as a premium aftermarket part made to meet OEM specifications. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM specifications so you can fit it with confidence.

How often should the 6V8399 be replaced?

Replace the 6V8399 whenever the assembly it serves is overhauled, or any time it shows wear, damage, or corrosion. Following the intervals in your service manual is the best guide.

What are the signs of a worn or failing 6V8399 seal?

A worn 6V8399 usually gives early warning through the assembly it supports. Watch for these signs:

  • Visible fluid leaks or seepage at the joint
  • Loss of system pressure
  • Contamination found inside the assembly
  • A hardened, cracked, or torn sealing surface

Why is the 6V8399 important, and what related parts work with it?

A sound 6V8399 is inexpensive insurance against larger repairs. Servicing it on time with parts that meet OEM specifications keeps the whole assembly working as intended. Related hardware on our site includes 1079976 Seal O-Ring and 7E5555 Gasket Ctp.

Questions About this Part?
Have a question about fit, compatibility, shipping, warranty, or returns?

Shipping

We know equipment downtime costs money, so fast and reliable shipping is a priority at Propel Parts. Orders placed on weekdays before 3:00 PM ET typically ship the same day, with expedited delivery options available for many locations when time is critical.

We ship across the U.S., Canada, and over 130 countries worldwide, helping customers keep machines running wherever they operate. Available shipping methods and delivery estimates are shown at checkout so you can select the option that best fits your timeline.

Tracking information is emailed within 24–48 hours after your order is processed, giving you full visibility from dispatch to delivery and peace of mind that your parts are on the way.

Easy Returns

Our refund policy is simple. We offer a 30-day, no-hassle return policy, and we make every effort to provide the best service and highest-quality parts possible. If you’re not fully satisfied with your purchase, you may return it within 30 days for a refund. Full details are available on our Returns Policy page.

Warranty

Buy with confidence. All parts from Propel Parts are covered against material or manufacturer defects for 12 months from the original invoice date. We stand behind every part we sell, so you can count on reliable performance and dependable support. Full details are available on our Warranty Policy page.

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